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S. HULDT.

CONDENSER FOR ZINC VAPORS.

APPLICATION FILED APR.3.1917.

l ,3 1 1,604. lutvnted July 29., 1919.

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S. HULDT.

CONDENSER FOR ZINC VAPORS.

APPLICATION FILED Ama. 19u.

L3 11,6041, Patented July 29, 191.9.

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N @Mw SVEN HULDT, 0F STOCKHOLM, SWEDEN, ASSIGN'OR T0 NOBSK ELEKTRISK METAL- INDUSTRI AKTIESELS, OF SARPSBORG, NORWAY.

Specification of Letters Patent.

Patented July 29, 1919.

Application filed April 3, 1917. Serial No. 159,510.

To all whom it may concern:

Be it known that I, SVEN HULDT banker, residing at Stockholm, Sweden, ave invented certain new and useful h Improvements in Condensers for Zinc Vapors, 'of which the following is a specification.

The present invention refers to improvements in condensers for continuously condensing zinc vapors, and consists of a continuously movable condenser, which is connected with the distillation chamber of the zinc. The -zinc powder generated in thecondenser simultaneously with liquid zinc falls to the bottom of the condenser, on which the powder, owing to the motion of the condenser, is subject to a rubbing operation, whereby the shells of the zinc powder, consisting of zinc oxid, are loosened and the cores, consisting of zinc, run together forming a body of liquid zinc under the influence at the tempera-ture, prevailing in the condenser, whereas the zinc oXid is separated and the carbon monoxid, which was mixed with the zinc vapors, escapes through an opening. Thercondenser conveniently may have a rotating, swinging or rocking motion, whereby deposit of condensedzinc at the junction between the condenser and the distillation chamber is obviated owing to the rubbing motion between the surfaces of junction at said place.

In the accompanying drawing, Figures 1, 2 and 3 show vertical sections of three forms of condenser according to the invention.

Fig. 4 is a sectional view of a modification.

1, Fig. 1, indicates a zinc distillation chamber, which is assumed to constitute an electric furnace chamber with electrodes 2, 3. From said distillation chamber 1 a conduit 4 for zinc vapors extends, connecting the-distillation chamber with the condenser 5. A. swinging motion is imparted to the condenser by means oi': a rotating disk or crank 6,'which is put in motion from a shaft 9 by the aid of a suitable transmission device 7, 8; a link 10, eccentrically attachedy to the disk 6, connecting the latter with the bottom 11 of the condenser 5, so that the condenser 5 is set in motion when the disk 6 rotates. The connection may also be such, that the condenser is put in a rocking motion. 12 indicates the exhaust of the carbon monoxid, mixed with the zinc vapors. The two con duits 4 and 12 form a common pipe connection 13,- entering the upper part of the condenser and being surrounded by said upper part. The condenser 5 swings on the pipe connection 13, constituting a guide for the condenser. GWi'ngtothe swinging motion of the condenser the guiding surfaces are kept free from condensed zinc, which is prevented froln depositing and solidifying there and thus binding together the condenser and pipe' connection. 14 indicates a tapping hole for the liquid zinc generated in the condenser 5.

Fig. 2 illustrates a modified construction, in which the condenser 5 is imparteda swinging motion to and 'from the drivin shaft 16, by means of the spur wheels 1 and 18 and the disk 19 secured coaXially with -the wheel 18, and connected with the link 2O by the crank rod 15. y

According to the construction shown in Fig. 3, the condenser 5 is imparted a rocking motion from the disk 21 by mea-ns of the link 22, one end of which is secured eccentrically on the disk 21 which is mounted c0- axially with the wheel 23 engaging with the driven pinion 24 mounted on the shaft 25.

fIn the construction shown in Fig. 4, means for guiding the condenser during its motion comprises water cooledv collars or guiding surfaces 13a, secured to the pipe connection 13, and 5, secured to the condenser 5. These water cooled guiding surfaces may be of curved form, and in the drawing the water cooled collar secured on the distillation chamber is provided with a guiding surface of curved form.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a condenser for zinc vapors, means for imparting motion to the condenser and means for movably connecting the condenser with the distillation chamber.

2. In a condenser for zinc vapors, means for imparting a continuous rotating motion to the condenser, and means for movably connecting the condenser with a distillation chamber.

3. In a condenser for zinc vapors, means for imparting a continuous rocking motion to the condenser, and means for movably connecting the condenser with a distillation chamber.

4. In a condenser for zinc vapors, means for imparting a continuous swinging motion to the condenser, and means for movably l connecting the condenser with a distillation chamber.

5. In a condenser for zinc vapors, means for imparting motion to the condenser, means for movably connecting the condenser with a distillation chamber, and means, consisting of Water cooled collars, for guiding the condenser during Said motion.

6. In a condenser for zinc vapors, means for imparting a motion to the condenser, means for movably connecting the condenser with the distillation chamber cooled guiding surfaces for guiding the condenser during said motion.

7. In a condenser for zinc vapors, means for imparting motion to the condenser, means for movabl connecting the condenser with the distillation chamber, and a Water cooled guiding surface of curved form, conand Water mimo@ stituting part of the guiding means for said condenser.

8. In a condenser for zinc vapors, a condenser chamber, means for imparting continuous motion to said condenser chamber, a pipe connection leading to said chamber from a retort structure, a pipe connection adapted to lead luncondensible gases from said condenser chamber, and means on said pipe connections Where they enter 'the condenser chamber adapted to guide the condenser during said continuous motion.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

SVEN HULDT.

Witnesses f WALDEMAR BOMAN, GRETA Plums. 

